Let me announce a new project Patchwork, a microblogging tool.
demo working at: http://patchwork.yohaku.info code hosted at: http://github.com/pirapira/patchwork/tree/master (under the MIT license)
The idea: posts and comments are the same thing. You can 1. create an original piece of text 2. write below another piece 3. write above another piece 4. create a fork of another piece and edit it.
regards, Yoichi Hirai
